US PATENT SUBCLASS 131 / 302
.~.~ Including means to circulate fluid

Current as of: June, 1999
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131 /   HD   TOBACCO

290  DF  TOBACCO TREATMENT {8}
300  DF  .~ With fluid or fluent material {6}
302.~.~ Including means to circulate fluid {2}
303  DF  .~.~.~> And temperature or humidity control of fluid
304  DF  .~.~.~> Including means to convey tobacco

DEFINITION

Classification: 131/302

Including means to circulate fluid:

(under subclass 300) Process or apparatus wherein means is provided to circulate the fluent material.